That means Woods will not play for the U.S. in September's Ryder Cup in Scotland. He did not qualify for one of the nine automatic spots, but team captain Tom Watson was considering Woods for one his three captain's picks.

"I've been told by my doctors and trainer that my back muscles need to be rehabilitated and healed," Woods said on his website. "They've advised me not to play or practice now."

He had back surgery on March 31 and played in just eight tournaments in 2014. The World Challenge is a star-studded unofficial event that benefits Woods' foundation. This will be the first year at Isleworth after 15 years in Southern California.

Woods lived at Isleworth for more than a decade before moving to Jupiter Island in 2011.